A Comparison of Color Versus Black and White Visual Display as Indicated by Bombing Performance in the 2B35 TA-4J Flight Simulator

1981 ◽  
Vol 25 (1) ◽  
pp. 233-234 ◽  
Author(s):  
Robert S. Kellogg ◽  
Robert S. Kennedy ◽  
Robert R. Woodruff

Ten highly qualified and experienced instructor pilots were tested with respect to bombing performance in the General Electric 2B35 full color wide screen flight simulator. Half the pilots flew with color first and then black and white and the other half with the reverse order. Repeated bombing runs were made and circular bombing errors obtained. Under the conditions of the study, no statistically significant differences were shown between performance in color versus black and white.

1901 ◽  
Vol 47 (199) ◽  
pp. 678-679
Author(s):  
F. W. Edridge-Green

All the facts which can be gathered from the study of museums or literature point to the conclusion that the sense of light was developed first, then the sense of colour. The tendency has been to regard colour-blindness as “chromic myopia;” but this is not correct unless there is a defective perception of light as well, as shown by the cases which I have recorded. A man may be able to see light of all colours at twice the normal distance, and yet be colour-blind. I specially wish to emphasise the fact that there is no definite relation between light and colour. When light falls upon the eye it sets up a nerve impulse, which is conveyed to the brain. In the impulse itself we have the physiological basis of light, and in the quality of the impulse the physiological basis of colour. My contention is that these two factors are perceived by two entirely different sets of cerebral cells, those devoted to the perception of colour being developed at a later period than those conveying to the mind the sensation of light. All the evidence which can be obtained shows that all objects were first seen as in a photograph, that is, in different degrees of black and white. In the evolution of the colour sense those waves which differ most physically, namely, red and violet, were first recognised as different, the remainder of the spectrum appearing grey. Homer's colour vision was of this class, which represents the degree just preceding total colour-blindness. I have recorded a case of this kind of a man who was colour-blind with one eye, and who was therefore able to tell me exactly how objects appeared with this eye. He said that the spectrum appeared nearly all grey, but with a tinge of red at one end and a tinge of violet at the other; he could see very much better with the colour-blind eye than with the other.


2016 ◽  
Vol 16 (2) ◽  
pp. 203-218
Author(s):  
Alicja Olejnik ◽  
Agata Żółtaszek

Abstract Diseases of affluence (of the 21st c.) by definition should have higher prevalence and/or mortality rates in richer and more developed countries than in poorer, underdeveloped states (where diseases of poverty are more common). Therefore, it has been indicated that it is civilizational progress that makes us sick. On the other hand, substantial financial resources, highly qualified medical personnel, and the cutting-edge technology of richer states, should allow for effective preventions, diagnostics, and treatment of diseases of poverty and of affluence. Therefore, a dilemma arises: is progress making us sick or curing us? To evaluate the influence of country socioeconomic and technological development on population health, a spatial analysis of the epidemiology of diseases of affluence and distribution of economic resources for European NUTS 2 has been performed. The main aim of this paper is to assess, how regional diversity in the prevalence of diseases of affluence is related to the regional development of regions.


Behaviour ◽  
1977 ◽  
Vol 60 (1-2) ◽  
pp. 28-74 ◽  
Author(s):  
Peter M. Waser

AbstractThe contexts and functions of several loud mangabey vocalizations, particularly the "whoopgobble", were investigated observationally and experimentally. Whoopgobbles are notable for their audibility and distinctiveness over long distances, their temporal pattern of delivery, and particularly their stereotypy and individual distinctiveness. On the other hand, contexts of and responses to these vocalizations are variable and sometimes nonobvious. In order to control context and more systematically investigate response, an experimental method involving playback of recorded vocalizations was developed. Although precautions against habituation were necessary, mangabey responses to playbacks were clearcut and repeatable. Answering vocalizations, changes in group movement, and changes in the dispersion of individuals within a group occurred only in response to mangabey vocalizations. Whoopgobble playbacks provoked a pattern of response, including most notably the rapid approach of one adult male (the "RA" male) from each group, which was specific to this call. Playback of whoopgobbles between 100 and 600m from mangabey groups indicated that this call does transmit information regarding the identity of the vocalizing individual and group over these distances. Test groups moved away from neighboring- and unknown-group calls, but towards those of their own males - particularly those of RA males. RA males, on the other hand, do not approach calls of other males from their own groups. Within a group, whoopgobbles may thus increase cohesion and influence the direction of movements. Characteristics of whoopgobble form and context are discussed with regard to hypothesized functions of these and other forest monkey loud calls. Responses by free-ranging mangabeys to playback of the whoopgobble confirm its role in maintaining distance between groups. Response was found to be independent of group size, despite the fact that whoopgobble rate is closely related to this variable and thus could transmit such information. Since responses were also found to be independent of location within the home range, intergroup spacing among mangabeys appears not be be "territorial", site defense does not occur. Nevertheless, the central areas in at least some mangabey groups' home ranges were never penetrated by neighbors. Playback tests with black-and-white colobus and blue monkeys, among which territorial spacing has been reported, indicate that responses to loud calls have some degree of site-specificity among these species. But the mangabey pattern of intergroup spacing appears to result from a combination of low group density, site attachment within groups, and site-independent avoidance between groups. These results emphasize that spacing "system" and "pattern" are not necessarily equivalent; a given set of spacing behaviors can result in different spacing patterns under different ecological conditions, while a given pattern may be obtained by any of several behavioral means. Evidence for site-independent spacing in other primate species is discussed.


2018 ◽  
Vol 214 (1) ◽  
pp. 47-74
Author(s):  
M . Raad Abdul Jabbar Jawad

     To start with, a definition of the term 'color' in Arabic language is presented.  Then, a study of colors implications in Al-Jahili poetry is proceeded; the poet's creativity in using color terms and incorporating these terms in Jahili poems explicitly or implicitly in forming up the topics of their poetry, then outlined. Color figures and images are dominant in Al-Jahili poetry to its extreme so as to propagate an oasis of environmental emulations, on one hand, and an outlet for personal experience on the other. In his poetry, Antara followed his ancestors' poetic traditions and closely textualized their inspirations and fantasies in his versification.  Partly, his poetic diction was personalized; whereas, the semantic contents tackled by ancestors were mediated and de toured astray in some instanses.  Reviewing his poetry collection one can infer his typical attitudes of using colors: the black, the white, the red, the green, the blue, and the yellow. Excessive use of these colors can be cited along with multiplicity of presentation in creating a quantum of color implications especially those of the white and the black, he used a decorated mosaic of colors in forming his poetic image; whereas he incorporated a corona of colors in restoring his poeticity.  Color contrasts are foregrounded in building up perceptible imagesof his poems. Colorful images, he used, asa loverand as a knight are merged with his passion and bravery; though gloomy in his macabre. The paper concludes that Antara used an excessive influx of colors terminology and semantic sheds in entailing his topics, focusing on the red, black and white.  The black was his favorite; whereas the red and the black are used excessively in his expressions.  Explicit reference to the red and black was the highest in number in the selected poems.  Essentially, some node that the notability of the black was a symptom of suffering and degrading he suffered as a black.


1963 ◽  
Vol 13 (3) ◽  
pp. 735-738 ◽  
Author(s):  
Charles C. Perkins ◽  
Donald J. Levis ◽  
Richard Seymann

Sixteen rats were run in a tilt box for 11 hr. on each of three successive days, and then three more days with conditions reversed. On one side, Ss received 3 sec. light followed immediately by .5 sec. shock. On the other side, they received the same stimuli in reverse order. Six shocks were presented each half hour regardless of Ss' behavior. A reliable preference for signal-shock was acquired during pre-reversal training. There was some tendency for Ss to shift their preference to the new signal-shock side during reversal, but this did not differ reliably from chance at the end of the reversal training. The results are interpreted as supporting a preparatory response interpretation of classical conditioning and of the acquisition of observing responses in the absence of differential external reinforcement.


Author(s):  
Julianne Fox ◽  
David Merwin ◽  
Roger Marsh ◽  
George McConkie ◽  
Arthur Kramer

A study was performed to determine the extent to which flight-relevant information on instruments peripheral to fixation is extracted and used during fixed-wing instrument flight. Twenty student and twenty instructor pilots flew a series of missions in a fixed-wing flight simulator which was interfaced with an eye-tracker. In one mission flight-relevant information was removed from instruments peripheral to fixation while in the other mission peripheral information was intact. Pilots' performance was degraded and eye scan strategies were modified when peripheral information was removed. Furthermore, in several situations instructor pilots' performance was more adversely influenced by the removal of peripheral information than was student pilots' performance. The data are discussed in terms of attentional strategies during flight.


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